net.sf.tweety.arg.dung.reasoner

Class StratifiedLabelingReasoner

java.lang.Object

net.sf.tweety.arg.dung.reasoner.AbstractDungReasoner

net.sf.tweety.arg.dung.reasoner.StratifiedLabelingReasoner

All Implemented Interfaces:

ModelProvider<Argument,DungTheory,StratifiedLabeling>, QualitativeReasoner<DungTheory,Argument>, Reasoner<java.lang.Boolean,DungTheory,Argument>

public class StratifiedLabelingReasoner
extends AbstractDungReasoner
implements ModelProvider<Argument,DungTheory,StratifiedLabeling>

This class implements a stratified labeling reasoner.

Author:

Matthias Thimm

Field Summary

Fields

Modifier and Type	Field and Description
private Semantics	semantics The semantics used for this reasoner.

Constructor Summary

Constructors

Constructor and Description
StratifiedLabelingReasoner() Creates a new reasoner using sceptical inference and grounded semantics.
StratifiedLabelingReasoner(Semantics semantics) Creates a new reasoner for the given Dung theory, semantics, and inference type.

Method Summary

Modifier and Type	Method and Description
StratifiedLabeling	getModel(DungTheory bbase) Returns a single (dedicated) model of the given belief base.
java.util.Collection<StratifiedLabeling>	getModels(DungTheory bbase) Returns a characterizing model of the given belief base
java.lang.Boolean	query(DungTheory beliefbase, Argument formula) Queries the given belief base for the given formula.
java.lang.Boolean	query(DungTheory beliefbase, Argument formula, int inferenceType) Queries the given AAF for the given argument using the given inference type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

semantics

private Semantics semantics

The semantics used for this reasoner.

Constructor Detail

StratifiedLabelingReasoner

public StratifiedLabelingReasoner(Semantics semantics)

Creates a new reasoner for the given Dung theory, semantics, and inference type.

Parameters:

beliefBase - a Dung theory

semantics - a semantics

inferenceType - and inference type

StratifiedLabelingReasoner

public StratifiedLabelingReasoner()

Creates a new reasoner using sceptical inference and grounded semantics.

Parameters:

beliefBase - The knowledge base for this reasoner.

Method Detail

getModels

public java.util.Collection<StratifiedLabeling> getModels(DungTheory bbase)

Description copied from interface: ModelProvider

Returns a characterizing model of the given belief base

Specified by:

getModels in interface ModelProvider<Argument,DungTheory,StratifiedLabeling>

Parameters:

bbase - some belief base

Returns:

the (selected) models of the belief base

getModel

public StratifiedLabeling getModel(DungTheory bbase)

Description copied from interface: ModelProvider

Returns a single (dedicated) model of the given belief base. If the implemented method allows for more than one dedicated model, the selection may be non-deterministic.

Specified by:

getModel in interface ModelProvider<Argument,DungTheory,StratifiedLabeling>

Returns:

a selected model of the belief base.

query

public java.lang.Boolean query(DungTheory beliefbase,
                               Argument formula)

Description copied from interface: Reasoner

Queries the given belief base for the given formula.

Specified by:

query in interface QualitativeReasoner<DungTheory,Argument>

Specified by:

query in interface Reasoner<java.lang.Boolean,DungTheory,Argument>

Specified by:

query in class AbstractDungReasoner

Parameters:

beliefbase - a belief base

formula - a formula

Returns:

the answer to the query

query

public java.lang.Boolean query(DungTheory beliefbase,
                               Argument formula,
                               int inferenceType)

Queries the given AAF for the given argument using the given inference type.

Parameters:

beliefbase - an AAF

formula - a single argument

inferenceType - either Semantics.SCEPTICAL_INFERENCE or Semantics.CREDULOUS_INFERENCE

Returns:

"true" if the argument is accepted